I have that same problem, I have a banner at the top of 203 px, then two columns below (menu and content) but I need these to drop down the bottom of the browser window. When setting 100% it uses full size of the monitor window, not taking into account the 203px banner at the top.So I need to find the att that will use the remaining space. To see the website in question please head over to http://www.tinkahill.com/pdt/voila